Door/Window Sensor PCBA assembly monitors the opening and closing status of doors and windows, integrating magnetic sensors, signal processing chips, and wireless communication modules. It sends an alarm signal to the user’s mobile phone when an abnormal opening is detected, enhancing home security. We adopt high-sensitivity magnetic sensors and low-power design, ensuring long standby time and reliable operation. Our 2 DIP production lines and strict quality inspection ensure the sensor’s durability and accuracy, adapting to various door and window types, and providing a simple and effective security solution.